Add meson wrapper

Author: 9ary

.gitignore

@@ -9,3 +9,4 @@ gc/ogc/libversion.h
 *.bz2
 docs
 warn.log
+.meson-subproject-wrap-hash.txt

configure

@@ -0,0 +1,61 @@
+#!/usr/bin/env bash
+
+src=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
+
+if [[ "$(readlink -f "$PWD")" == "$src" ]]; then
+    printf '%s\n' 'This script must be run out of tree!'
+    exit 1
+fi
+
+tmp=$(mktemp -t Makefile.XXXXXXXXXX)
+trap 'rm -f "$tmp"' EXIT
+
+function write() {
+    printf '%s\n' "$*" >> "$tmp"
+}
+
+write '# Automatically generated file'
+
+platforms=()
+libs=()
+
+for arg in "$@"; do
+    val="${arg#*=}"
+    case $arg in
+        --prefix=*)
+            write export INSTALL_PREFIX := "$val"
+            ;;
+        --incdir=*)
+            write export INCDEST := "$val"
+            ;;
+        --libdir=*)
+            write export LIBDEST := "$val"
+            ;;
+        --bindir=*)
+            # no-op
+            ;;
+        --opt-level=*)
+            write export OPTLEVEL := "$val"
+            ;;
+        --with-platform=*)
+            platforms+=("$val")
+            ;;
+        --with-lib=*)
+            libs+=("$val")
+            ;;
+        *)
+            printf '%s\n' "$arg: Invalid argument"
+            exit 1
+    esac
+done
+
+if (( ${#platforms[@]} )); then
+    write export PLATFORMS := "${platforms[@]}"
+fi
+
+if (( ${#libs[@]} )); then
+    write export LIBRARIES := "${libs[@]}"
+fi
+
+write "include $src/Makefile"
+cp "$tmp" Makefile

meson.build

@@ -0,0 +1,39 @@
+project(
+    'libogc2',
+    ['c'],
+    meson_version: '>=1.1',
+)
+
+external_project = import('unstable-external_project')
+
+opt_level = get_option('optimization')
+platform = get_option('platform')
+libraries = get_option('libraries')
+
+if libraries.length() == 0
+    error('Must specify libraries to build.')
+endif
+
+lib_args = []
+foreach lib: libraries
+    lib_args += '--with-lib=' + lib
+endforeach
+
+p = external_project.add_project(
+    'configure',
+    configure_options: [
+        '--prefix=@PREFIX@',
+        '--bindir=@BINDIR@',
+        '--libdir=@LIBDIR@',
+        '--incdir=@INCLUDEDIR@',
+        '--opt-level=' + opt_level,
+        '--with-platform=' + platform,
+    ] + lib_args,
+    cross_configure_options: [],
+)
+
+deps = {}
+foreach lib: libraries
+    dep = p.dependency(':' + platform + '/lib' + lib + '.a')
+    deps += {lib: dep}
+endforeach

meson.options

@@ -0,0 +1,2 @@
+option('platform', type: 'combo', choices: ['cube', 'wii'])
+option('libraries', type: 'array')